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package com.envision.energy.eos.sdk;

import com.envision.energy.eos.exception.EOSClientException;

public class EOSClient {
	private static IDataService dataService = null;
	private static IAlarmService alarmService = null;
	private static IEventService eventService = null;
	private static IEventV2Service eventV2Service = null;
	private static IAssetService assetService = null;

	
	public EOSClient(String appKey, String appSecret, String url)
			throws EOSClientException {
		synchronized (this) {
			check();
			ProxyManager.INSTANCE.setTransport(Transport.create(appKey, appSecret, url));
		}
	}
	
	public EOSClient(String appKey, String appSecrect, String url, int retryTimeoutSec)
			throws EOSClientException {
		synchronized (this) {
			check();
			ProxyManager.INSTANCE.setTransport(Transport.create(appKey, appSecrect, url, retryTimeoutSec));
		}
	}
	
	private void check() throws EOSClientException {
		//一个SDK只能有一个socket连接，避免利用sdk创建过多socket，维护server安全性
		if(ProxyManager.INSTANCE.transportIsOpen()) {
			throw new EOSClientException("Socket is open. Shutdown the old client first.");
		}
	}
	
	/**
	 * if app is invalid, return null.
	 * @return IDataService
	 */
	public IDataService getDataService() {
		if(dataService == null) {
			dataService = new DataServiceImpl();
		}
		return dataService;
	}
	
	public IAlarmService getAlarmService() {
		if(alarmService == null) {
			alarmService = new AlarmServiceImpl();
		}
		return alarmService;
	}

	public  IEventService getEventService(){
		if(eventService == null){
			eventService = new EventServiceImpl();
		}
		return eventService;
	}

	public IEventV2Service getEventV2Service() {
		if(eventV2Service == null){
			eventV2Service = new EventV2ServiceImpl();
		}
		return eventV2Service;
	}

	public IAssetService getAssetService(){
		if(assetService == null ){
			assetService = new AssetServiceImpl();
		}
		return assetService;
	}


	public void shutdown() {
		if(ProxyManager.INSTANCE.transportIsOpen()) {
			ProxyManager.INSTANCE.closeTransport();
			if(dataService != null) {
				dataService.shutdown();
				dataService = null;
			}
			
			if(alarmService != null) {
				alarmService.shutdown();
				alarmService = null;
			}
		}
	}
}